Newest macOS 26.3 beta provides to indicators that new Macs are imminent

February 5, 2026

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If you happen to’re among the many rising variety of customers hoping to see up to date MacBook Professional variations with new M5 chips sooner fairly than later, as we speak’s macOS 26.3 RC brings some nice information. Listed here are the small print.

M5 Max and M5 Extremely referenced

As reported by MacRumors, as we speak’s macOS 26.3 Launch Candidate construct consists of references to what are very seemingly two new M5 chips for upcoming MacBook Professional updates.

Extra particularly, macOS 26.3 RC consists of inside references to 2 new SoC IDs, T6051 and T6052, that are tagged with platform codes H17C and H17D.

To make sense of those codes, listed here are the SoC IDs and platform codes Apple has used to this point for all different M-series Apple Silicon chips:

Chip	SoC ID	Platform code
M1	T8103	H13G
M1 Professional	T6000	H13J or H13S
M1 Max	T6001	H13J or H13C
M1 Extremely	T6002	H13J or H13D
M2	T8112	H14G
M2 Professional	T6020	H14S
M2 Max	T6021	H14C
M2 Extremely	T6022	H14D
M3	T8122	H15G
M3 Professional	T6030	H15S
M3 Max	T6031 or T6034	H15C or H15M
M3 Extremely	T6032	H15D
M4	T8132	H16G
M4 Professional	T6040	H16S
M4 Max	T6041	H16C
M5	T8142	H17G

Based mostly on this normal, it’s seemingly that the T6051/H17C IDs discuss with the upcoming M5 Max chip, whereas the T6052/H17D IDs discuss with the M5 Extremely.

Curiously, there appear to be no references to the M5 Professional chip (which ought to carry the T6050/H17S identifiers) but, despite the fact that, a minimum of in idea, the RC ought to be the very same construct that may roll out publicly when the discharge candidate turns into the ultimate launch.

What meaning for the discharge timeline of the following MacBook Professionals, we’ll seemingly discover out sooner fairly than later, as Bloomberg just lately reported that the brand new fashions are “slated for the macOS 26.3 software program cycle”.